diff --git a/Project6 - pointer/pointer_practice/1.ptr_var.c b/Project6 - pointer/pointer_practice/1.ptr_var.c
index 52d45e10c4879e50466ecabdfaba2288a52f7590..c8a62ba381bfbcb4b3ae456010b61dac40d42f95 100644
--- a/Project6 - pointer/pointer_practice/1.ptr_var.c
+++ b/Project6 - pointer/pointer_practice/1.ptr_var.c
@@ -1,20 +1,20 @@
-#include <stdio.h>
-
-int main(void)
-{
- short n1=10, n2=20;
- int n3=0x10203040;
- short *p; //n1의 타입을 적는다.
- p = &n1;
- printf("n1:%d, *p:%d\n", n1, *p);
- *p = 100;
- printf("n1:%d, *p:%d\n", n1, *p);
- (*p)++;
- printf("n1:%d, *p:%d\n", n1, *p);
- p = &n2;
- printf("n2:%d, *p:%d\n", n2, *p);
- p = &n3;
- printf("n3:%x, *p:%x\n", n3, *p);
- printf("n3:%x, *p:%x\n", n3, *(p+1));
- return 0;
-}
+#include <stdio.h>
+
+int main(void)
+{
+ short n1=10, n2=20;
+ int n3=0x10203040;
+ short *p; //n1의 타입을 적는다.
+ p = &n1;
+ printf("n1:%d, *p:%d\n", n1, *p);
+ *p = 100;
+ printf("n1:%d, *p:%d\n", n1, *p);
+ (*p)++;
+ printf("n1:%d, *p:%d\n", n1, *p);
+ p = &n2;
+ printf("n2:%d, *p:%d\n", n2, *p);
+ p = &n3;
+ printf("n3:%x, *p:%x\n", n3, *p);
+ printf("n3:%x, *p:%x\n", n3, *(p+1));
+ return 0;
+}
diff --git a/Project6 - pointer/pointer_practice/2.constPtrVar.c b/Project6 - pointer/pointer_practice/2.constPtrVar.c
index ba41d10083fffebd201cc3b44b25e984f1f632c3..8db068064bfc8c7319b9e0e44ceb41d0401203a9 100644
--- a/Project6 - pointer/pointer_practice/2.constPtrVar.c
+++ b/Project6 - pointer/pointer_practice/2.constPtrVar.c
@@ -1,21 +1,21 @@
-#include <stdio.h>
-
-int main(void) {
- int n1=10, n2=20, n3=30;
- int * p1=&n1;
- const int * p2=&n1; //int를 상수화하겠다.
- int * const p3=&n1; //p3를 상수화하겠다. p3의 주소값을 못바꾸게 하겠다.
- const int * const p3=&n1;
-
- (*p1)++;
- (*p2)++; //p2의 내용물을 변경할 수 없다.
- (*p3)++;
- (*p4)++; //p4 변경 x
-
- p1 = &n2;
- p2 = &n2;
- p3 = &n2; //p3를 변경할 수 없다.
- p4 = &n2; //p4 변경 x
-
- return 0;
-}
+#include <stdio.h>
+
+int main(void) {
+ int n1=10, n2=20, n3=30;
+ int * p1=&n1;
+ const int * p2=&n1; //int를 상수화하겠다.
+ int * const p3=&n1; //p3를 상수화하겠다. p3의 주소값을 못바꾸게 하겠다.
+ const int * const p3=&n1;
+
+ (*p1)++;
+ (*p2)++; //p2의 내용물을 변경할 수 없다.
+ (*p3)++;
+ (*p4)++; //p4 변경 x
+
+ p1 = &n2;
+ p2 = &n2;
+ p3 = &n2; //p3를 변경할 수 없다.
+ p4 = &n2; //p4 변경 x
+
+ return 0;
+}
diff --git a/Project6 - pointer/pointer_practice/4.ptr_op1.c b/Project6 - pointer/pointer_practice/4.ptr_op1.c
index 9f9f8ea0113558372e16ac72e61930818cec03ea..ab96b558eb40c80a50ddb7e27ac3f68cfaf7c039 100644
--- a/Project6 - pointer/pointer_practice/4.ptr_op1.c
+++ b/Project6 - pointer/pointer_practice/4.ptr_op1.c
@@ -1,19 +1,19 @@
-#include <stdio.h>
-
-int main(void)
-{
- short data[] = {1, 2, 3, 4, 5};
- short *p;
- p = &data[0]; //p = data;
- printf("data[0]:%d, *p:%d\n", data[0], *p);
- p++;
- printf("data[1]:%d, *p:%d\n", data[1], *p);
- p += 2;
- printf("data[3]:%d, *p:%d\n", data[3], *p);
- p += -2;
- printf("data[1]:%d, *p:%d\n", data[1], *p);
-
- //p *= 2;
- //p /= 2;
- return 0;
-}
+#include <stdio.h>
+
+int main(void)
+{
+ short data[] = {1, 2, 3, 4, 5};
+ short *p;
+ p = &data[0]; //p = data;
+ printf("data[0]:%d, *p:%d\n", data[0], *p);
+ p++;
+ printf("data[1]:%d, *p:%d\n", data[1], *p);
+ p += 2;
+ printf("data[3]:%d, *p:%d\n", data[3], *p);
+ p += -2;
+ printf("data[1]:%d, *p:%d\n", data[1], *p);
+
+ //p *= 2;
+ //p /= 2;
+ return 0;
+}
diff --git a/Project6 - pointer/pointer_practice/5.ptr_op2.c b/Project6 - pointer/pointer_practice/5.ptr_op2.c
index e5b875734c45c17fa1044ec137982b2a9bcc3489..e89d826f360c8fb974a6f9b6cadf51df514300e2 100644
--- a/Project6 - pointer/pointer_practice/5.ptr_op2.c
+++ b/Project6 - pointer/pointer_practice/5.ptr_op2.c
@@ -1,16 +1,16 @@
-#include <stdio.h>
-
-int main(void)
-{
- short data[] = {1, 2, 3, 4, 5};
- short *p1=&data[0], *p2=&data[4];
-
- printf("p1:%p, p2:%p\n", p1, p2);
- printf("p1+4:%p\n", p1 + 4);
- printf("p2-4:%p\n", p2 - 4);
- printf("p2-p1:%d\n", p2 - p1); //주소 offset
- //printf("p1+p2:%p\n", p1 + p2);
- //printf("p1*p2:%p\n", p1 * p2);
- //printf("p1/p2:%p\n", p1 / p2);
- return 0;
-}
+#include <stdio.h>
+
+int main(void)
+{
+ short data[] = {1, 2, 3, 4, 5};
+ short *p1=&data[0], *p2=&data[4];
+
+ printf("p1:%p, p2:%p\n", p1, p2);
+ printf("p1+4:%p\n", p1 + 4);
+ printf("p2-4:%p\n", p2 - 4);
+ printf("p2-p1:%d\n", p2 - p1); //주소 offset
+ //printf("p1+p2:%p\n", p1 + p2);
+ //printf("p1*p2:%p\n", p1 * p2);
+ //printf("p1/p2:%p\n", p1 / p2);
+ return 0;
+}
diff --git a/Project6 - pointer/pointer_practice/6.ptrNarray1.c b/Project6 - pointer/pointer_practice/6.ptrNarray1.c
index 4482e54dbdf12cceaf073425184d94256d7949bb..740e42337d35caf1c569b530eb4d751d396dbc2a 100644
--- a/Project6 - pointer/pointer_practice/6.ptrNarray1.c
+++ b/Project6 - pointer/pointer_practice/6.ptrNarray1.c
@@ -1,29 +1,29 @@
-#include <stdio.h>
-
-int main(void)
-{
- short arr[5] = {1, 2, 3, 4, 5};
- short *p; //p=arr; p=&arr[0]; short * const arr;
- int i;
-
- p = &arr[0];
- printf("%d,%d\n", p[1], p[3]);
-
- p = &arr[1];
- printf("%d,%d\n", p[1], p[3]);
-
-#if 0
- for(i=0, p=arr; i<5; i++) {
- printf("%d,%d\n", arr[i], p[i]);
- printf("%d,%d\n", *(arr+i), *(p+i));
- }
-#endif
- for(i=0, p=arr; i<5; i++, p++) {
- printf("%d,%d\n", arr[i], *p);
- }
- for(i=0, p=arr; i<5; i++, arr++) {
- printf("%d,%d\n", p[i], *arr);
- }
-
- return 0;
-}
+#include <stdio.h>
+
+int main(void)
+{
+ short arr[5] = {1, 2, 3, 4, 5};
+ short *p; //p=arr; p=&arr[0]; short * const arr;
+ int i;
+
+ p = &arr[0];
+ printf("%d,%d\n", p[1], p[3]);
+
+ p = &arr[1];
+ printf("%d,%d\n", p[1], p[3]);
+
+#if 0
+ for(i=0, p=arr; i<5; i++) {
+ printf("%d,%d\n", arr[i], p[i]);
+ printf("%d,%d\n", *(arr+i), *(p+i));
+ }
+#endif
+ for(i=0, p=arr; i<5; i++, p++) {
+ printf("%d,%d\n", arr[i], *p);
+ }
+ for(i=0, p=arr; i<5; i++, arr++) {
+ printf("%d,%d\n", p[i], *arr);
+ }
+
+ return 0;
+}
diff --git a/Project6 - pointer/pointer_practice/7.ptrNarray2.c b/Project6 - pointer/pointer_practice/7.ptrNarray2.c
index 9a5f197becc64fa9f1d8bb3e7da60ba1fadd6f3b..db43acd104c8f02ac13858abf66d1aacaeaf7063 100644
--- a/Project6 - pointer/pointer_practice/7.ptrNarray2.c
+++ b/Project6 - pointer/pointer_practice/7.ptrNarray2.c
@@ -1,41 +1,41 @@
-#include <stdio.h>
-
-void printData_1(const short *data)//값 변경을 못하게 할 때
-{
- int i;
-
- for(i=0; i<5; i++) {
- printf("%d,%d\n", data[i], *(data+i));
- //data[i] = 9999; //short * data일때
- }
-}
-
-void printData_2(short data[5])
-{
- int i;
-
- for(i=0; i<5; i++) {
- printf("%d,%d\n", data[i], *(data+i));
- }
-}
-
-void updateData(short *data)
-{
- int i;
- for(i=0; i<5; i++) data[i] += 10;
-}
-
-int main(void)
-{
- short arr[5] = {1, 2, 3, 4, 5};
-
- printf("-------------------------\n");
- printData_1(arr);
- printf("-------------------------\n");
- printData_2(arr);
- printf("-------------------------\n");
- updateData(arr);
- printData_2(arr);
-
- return 0;
-}
+#include <stdio.h>
+
+void printData_1(const short *data)//값 변경을 못하게 할 때
+{
+ int i;
+
+ for(i=0; i<5; i++) {
+ printf("%d,%d\n", data[i], *(data+i));
+ //data[i] = 9999; //short * data일때
+ }
+}
+
+void printData_2(short data[5])
+{
+ int i;
+
+ for(i=0; i<5; i++) {
+ printf("%d,%d\n", data[i], *(data+i));
+ }
+}
+
+void updateData(short *data)
+{
+ int i;
+ for(i=0; i<5; i++) data[i] += 10;
+}
+
+int main(void)
+{
+ short arr[5] = {1, 2, 3, 4, 5};
+
+ printf("-------------------------\n");
+ printData_1(arr);
+ printf("-------------------------\n");
+ printData_2(arr);
+ printf("-------------------------\n");
+ updateData(arr);
+ printData_2(arr);
+
+ return 0;
+}
diff --git a/Project6 - pointer/pointer_practice/8.functionPtr1.c b/Project6 - pointer/pointer_practice/8.functionPtr1.c
index 574013e1f0d235ed64d5d731159d8728fb66b4fe..27625914de4fe90761965454f5e73459babc5d68 100644
--- a/Project6 - pointer/pointer_practice/8.functionPtr1.c
+++ b/Project6 - pointer/pointer_practice/8.functionPtr1.c
@@ -1,43 +1,43 @@
-#include <stdio.h>
-
-int add(int d1, int d2) {
- return d1+d2;
-}
-int sub(int d1, int d2) {
- return d1-d2;
-}
-int mul(int d1, int d2) {
- return d1*d2;
-}
-int div(int d1, int d2) {
- if(d2) return d1/d2;
- else { printf("Zero Dived Error!!\n"); return 0; }
-}
-
-int main(void)
-{
- int no, rst;
- //함수 포인터
- int (*fp) (int, int); //add의 타입을 적어야 한다. //int(int, int) *fp;
- //(*fp) : 포인터 변수이고 포인터 변수의 타입은 int(int,int)
-
- while(1) {
- do {
- printf("\nSelect(1.add, 2.sub, 3.mul, 4.div, 0.quit) => ");
- scanf("%d", &no);
- } while(no<0 || no>4);
- if(no == 0) break;
-
- switch(no){
- case 1: fp = &add; break;
- case 2: fp = sub; break;
- case 3: fp = mul; break;
- case 4: fp = ÷ break;
- }
-
- rst = fp(10, 20);
- printf("rst => %d\n", rst);
- }
-
- return 0;
-}
+#include <stdio.h>
+
+int add(int d1, int d2) {
+ return d1+d2;
+}
+int sub(int d1, int d2) {
+ return d1-d2;
+}
+int mul(int d1, int d2) {
+ return d1*d2;
+}
+int div(int d1, int d2) {
+ if(d2) return d1/d2;
+ else { printf("Zero Dived Error!!\n"); return 0; }
+}
+
+int main(void)
+{
+ int no, rst;
+ //함수 포인터
+ int (*fp) (int, int); //add의 타입을 적어야 한다. //int(int, int) *fp;
+ //(*fp) : 포인터 변수이고 포인터 변수의 타입은 int(int,int)
+
+ while(1) {
+ do {
+ printf("\nSelect(1.add, 2.sub, 3.mul, 4.div, 0.quit) => ");
+ scanf("%d", &no);
+ } while(no<0 || no>4);
+ if(no == 0) break;
+
+ switch(no){
+ case 1: fp = &add; break;
+ case 2: fp = sub; break;
+ case 3: fp = mul; break;
+ case 4: fp = ÷ break;
+ }
+
+ rst = fp(10, 20);
+ printf("rst => %d\n", rst);
+ }
+
+ return 0;
+}